Lot's of people do this. It's not really laziness, they put the review score front and center. In my case if the review score matches what I expect the game to get I might not read the review because I'm not too interested. If the review score is unique (too low or high for my expectations) then I'll read the review to find out why. A 10 for GTA4 is unique, I'm sure it got a lot of people's attention... well that's obvious.
As for this thread... I think we've covered a lot of this already...








